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Phone: +86 16626708626Description
- Key Technical Specifications
| Parameter | Options / Value Code Breakdown | Parameter Value |
|---|---|---|
| Base Model | 330780 | 3300 XL 11mm Proximitor Sensor |
| Total System Length | -50 | 5.0 meters (16.4 feet) total system length |
| Agency Approval | -00 | No agency approvals required / Standard commercial |
| Linear Range | — | 4.0 mm (160 mils), starting at 0.5 mm (20 mils) from tip |
| Scale Factor | — | 3.94 V/mm (100 mV/mil) nominal into a 10 kΩ load |
| Input Supply Voltage | — | −17.5 V DC to −26 V DC (Nominal −24 V DC) |
| Output Resistance | — | 50 Ω nominal signal output impedance |
| Operating Temp Range | — | −51 to +100 °C (−60 to +212 °F) |
| Mounting Options | — | Standard 35 mm DIN rail or flat panel surface mounting |
- Product Introduction & Supply Chain Strategy
The Bently Nevada 330780-50-00 is a 3300 XL series 11mm Proximitor Sensor designed for non-contacting axial thrust position, radial vibration, and speed measurement on large turbomachinery. Designed for applications requiring an extended linear range (4.0 mm / 160 mils) compared to standard 8mm probes, it supplies an RF excitation signal to an 11mm proximity probe and conditions the return signal into a precise linear voltage output (100 mV/mil).
This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules undergo rigorous quality verification to ensure OEM-level reliability. Refurbished Proximitor sensors carry severe risks of internal circuit drift, degraded output op-amps, or compromised potted insulation, which can cause false machinery trips or unrecorded shaft contact events. Securing this unit as New Surplus guarantees exact scale factor accuracy, lowers total cost of ownership (TCO), and insulates your plant from extended manufacturer lead times.
330780-50-00
330780-50-00
- Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
- Place connected 3500 monitoring channels into bypass mode before disturbing sensor wiring.
- Wear a grounded ESD wristband before handling wiring terminals.
- Verify power supply rail delivers clean −24 V DC (−17.5 to −26 V DC range) relative to system ground.
Stage 2: Removal
- Disconnect the coaxial ClickLoc extension cable from the input jack.
- Unscrew terminal block wiring (VT, OUT, COM) and mark wire labels clearly.
- Unsnap the module from the 35 mm DIN rail or unfasten panel mounting screws.
Stage 3: Installation (Clone & Seat)
- Mount the new 330780-50-00 Proximitor onto the 35 mm DIN rail or secure it to the enclosure backplate.
- Connect power (−24 V DC into VT), signal output (OUT), and common ground (COM) to the screw terminals according to your wiring schematic.
- Attach the 3300 XL 11mm extension cable ClickLoc connector into the Proximitor input jack until it locks into place.
Stage 4: Power-On & Testing
- Measure DC gap voltage across the OUT and COM terminals using a calibrated digital multimeter (DMM).
- Confirm bias voltage reads within nominal range (typically −9.0 to −11.0 V DC for a centered 2.0 mm / 80 mil probe physical gap on an 11mm system).
- Verify dynamic AC vibration and position readings on the 3500 rack or diagnostic monitoring system match baseline levels.
- Firmware/Software Versions & Upgrade Notes
- System Compatibility: Designed specifically for 3300 XL 11mm proximity probes and extension cables. Note that 11mm systems utilize a 100 mV/mil (3.94 V/mm) scale factor, unlike 8mm systems which use 200 mV/mil. Ensure monitoring system rack channels are configured for 100 mV/mil scaling.
- Length Matching Rule: This unit is coded -50 for a 5.0-meter system length. It MUST be paired with an 11mm probe and extension cable combination totaling exactly 5.0 meters (e.g., 1.0m probe + 4.0m extension cable). Mismatching a 5.0m Proximitor with a 9.0m cable system destroys output linearity and scale factor accuracy.
- Hardware Architecture: The 330780 contains analog signal conditioning circuitry and requires no digital firmware, software loading, or field flash updates.
- Frequently Asked Questions (FAQ)
Q: Are these units really brand new, or are they refurbished/repaired cards? A: This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules feature zero wear on wiring terminals, intact potting compound, pristine connector plating, and original packaging opened only for mandatory QC inspection.
Q: Why is New Surplus priced higher than refurbished Proximitor sensors on the market? A: Refurbished sensors often have aged internal capacitors or drifted analog components that cause output scale factor error. Saving $100 on a used sensor can lead to a false trip on a high-value compressor or turbine. Our pricing reflects genuine, factory-fresh inventory that delivers 100% signal accuracy and zero failure risk out of the box.
Q: What is the main difference between an 8mm Proximitor (330180) and an 11mm Proximitor (330780)? A: The 330780 11mm Proximitor provides double the linear measuring range (4.0 mm vs 2.0 mm) and outputs a scale factor of 100 mV/mil (vs 200 mV/mil). It is primarily used for axial thrust position monitoring where larger shaft movement occurs.
Q: What does the -00 option code represent? A: The -00 suffix indicates standard commercial manufacturing without specific hazardous location agency approvals. If your installation requires Class I Div 1 / Zone 0 approvals, an agency-approved variant (such as option -05) is required.
Q: What warranty coverage applies to this module? A: Every 330780-50-00 New Surplus Proximitor sensor comes backed by a comprehensive 1-year replacement warranty, fully verified through visual pin inspection, power-on output testing, and ESD-safe packaging protocols.
